CVE-2026-88843 MasterStudy LMS 3.5.29 - < 3.7.50 - Contributor+ LFI via Elementor Courses Categories Widget
Contributors can exploit a path traversal flaw in MasterStudy LMS to include and execute arbitrary local PHP files, leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-88843?
CVE-2026-88843 is a high-severity path traversal vulnerability in Unknown MasterStudy LMS WordPress Plugin, published on 24 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not validate one of its display-style settings before using it to build a template path, allowing users with the Contributor role and above to include and execute arbitrary local PHP files on the server. An equivalent path was corrected in an earlier release and this one was not, so the issue persists in versions the earlier advisory reports as fixed.
Weakness: CWE-22
Which versions are affected by CVE-2026-88843?
How do I fix CVE-2026-88843?
No fix has been published for CVE-2026-88843 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-88843 being exploited?
There is no known exploitation of CVE-2026-88843 in the wild and no public exploit code.
Sources
Also known as GHSA-99q4-525f-whh5.